Spray device



3am. 26, 1937,. s. MAJEwsKl 2,069,076

SPRAY DEVICE Filed May 24, 1955 Pf' 27 25 I5 20 S ail Z5 /x/ gg), y, i5 ,fl/w4 I f 42 ze m b 6 A if 15 l5 22 1 7a www /f//w//ff/ BY ATTORNE Patented Jan. 26, 1937 UNITED STATES PATENT OFFICE SPRAY DEVICE Stanley Majewskl, Glendale, Long Island, N. Y. Application May 24, 1935, Serial No. 23,140

This invention relates to spray devices commonly referred to as atomizers; and the object of the invention is to provide a device of this class involving an elongated cylinder unit comprising a series of tubes disposed one within the other and constructed to form a central pump chamber and a circumferential discharge chamber encircling the pump chamber with means atone end of the discharge chamber for placing the same in communication with the pump chamber and with a discharge nozzle vdevice communicating with the other end thereof through which a predetermined fluid may be sprayed in a substan- I tially vapor-like fashion; a further object being to provide the cylindrical device with a cap or closure plate portion rotatable with 'respect to the cylinder and by means of which the unit may be attached to a suitable container; a further object being to provide a device of the class described composed of a plurality of economically formed parts which may be quickly and easily assembled and secured together, thus permitting the device to be manufactured and sold at a reasonable price, and at the same time, a Very simple compact unit is provided which may be readily attached to containers of various kinds and classes; and with these and other objects in view, the invention consists in a device of the class and for the purpose specied, which is constructed as more fully hereinafter described and claimed.

' The invention is fully disclosed in the following specication, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a longitudinal sectional view through the device, shown attached vto a container, with parts of the construction broken away.

Fig. 2 is an enlarged sectional view of a discharge nozzle which is shown in elevation in Fig. 1; and,

Fig. 3 is a detail section' on the line 3-3 of Fig. 2.

In carrying my invention into eiect, I provide a cylinder unit 5 consisting of an elongated inner tube 6 which forms the pump cylinder and an outer tube 1 forming the discharge cylinder. The tube 1 is spaced from the tube 6 throughout the major portion of the cylinderV unit to form a discharge chamber 8, the lower end portion of which is in communication with the pump cylinder through a small port or passage' 9. The upper end portion of the tube 1 has an annular lbead I0 which forms a seat against which a cup- 10 claims. (ci. 10s- 211) shaped closure cap I I rests, the cap being free to rotate on the tube 1 but is held against longitudinal movement by a retaining ring I 2 pressed onto the tube 1. This ring also serves to hold a packing ring I3 in the cap II to form a seal 5 between the cap and the upper end portion of a bottle or other container I4 in connection with which the cap II is detachably coupled through the screw threaded engagement as indicated at I 5 or in any other desired manner. Above the annular bead I0 the tube 1 is provided with an outwardly pressed portion i6 apertured to receive a nozzle tube I1 riveted or otherwise secured to the offset I6 as indicated at i8. The outer end portion of the nozzle tube i1 is threaded as seen at I9 to receive a cap 20 having a large discharge opening 2|. Disposed between the outer end oi the nozzle tube I1 and the opposed wall oi the cap 2U is a cup-shaped member 22 and disk 23, packing rings 24 and 25 being disposed between the tubes I1 and cup-shaped member 22 and between said member and the disk 23 respectively; 'I'he bottom wall of the member 22 is arranged adjacent the disk 23 and is provided with two or more circumferentially extending grooves 22a terminating in discharge passages 22h, note Fig. 3, whereby fluid from the discharge chamber 8 in passing through the tube I1 will be given a whirl or circumferential movement within the chamber 26 formed between the member 22 and plate 23 and prior to itspdischarge through a small opening 23a. in the plate 23, which operation facilitates the vapor-like or mist-like discharge of the fluid from the nozzle 6, desirable in certain uses of the device as atomizers as well as in the use of spraying devices in beauty parlors and similar places. With the construction shown, the cap 20 may be detached from time to time and the member 22 and disk 23 removed and cleaned or a new element may be substituted to produce different spraying eiects.

The upper and lower end portions o! the tubes 6 and 1 are pressed, brazed or otherwise secured together, and mounted within the upper end of the tube 6 is a bea-ring plug 21 which forms a support and guide for a plunger rod 28 having a finger piece portion 29 at its outer free end and outwardly extending members 3 0 substantially centrally thereof to limit outward movement of the rod with respect to the plug 21. Within the tube 6 or pump cylinder is arranged a cup-shaped piston 3|, which may be of any preferred construction. A spring 32 serves to support the piston at all times in engagement with means in the operation of forcing fiuld from the cylinder and in discharging the same through said discharge chamber and passage, a check valve seating in the lower end portion of the cylinder unit for closing the communication between the pump cylinder'and said feed tube in the downward stroke of the piston and in the operation of transmitting fluid in to the discharge chamber and outwardly through said discharge passage, and means inthe lower portion of the pump cylinder for limiting upward or inward movement of said check valve and for forming a seat for said tensional means.

4. A spray device of the class described comprising an elongated cylinder unitconsistng d inner and outer tubes arranged one directly with-' in the other to seal .said tubes at opposite end portions thereof, a restricted discharge chamber extending longitudinally of and between adjacent walls of the tubes intermediate the sealed ends thereof, the inner tube forming a pump cylinder closed at one end by a cap or plug and a reduced feed tube communicating with the other lower end of said cylinder, the wall of the inner tube having adjacent the lower end thereof a passage opening into said discharge chamber, the outer tube having a discharge passage adjacent .the upper end thereof and communicating with the upper end of said discharge chamber, a cupshaped piston in the pump cylinder, tensional means for moving the piston upwardly in said cylinder, a plunger rod slidably mounted in said cap and independent of andadapted to engage said piston to move the same downwardly in the cylinder against the action of said tensional means in the operation of forcing fluid from the cylinder and in discharging the same through said discharge chamber and passage, a check valve seating in the lower end portion of the cylinder unit for closing the communication between the pump cylinder and said feed tube in the downward stroke of the piston and in the operation of transmitting uid into the discharge chamber and outwardly through said discharge passage, means in the lower portion of the pump cylinder for limiting upward or inward movement of said check valve and for forming a/seat for said tensional means, and that part of the outer tube having the discharge passage being pressed outwardly.

`5. A spray device of the class described comprising an elongated cylinder unit consisting of inner and outer tubes arranged one directlyv within the other to seal said tubes at opposite end portions thereof, a restricted discharge chamber extending longitudinally of and between adjacent walls of the tubes intermediate the sealed ends thereof, the inner tube forming a pump cylinder closed at one end by a cap or plug and a reduced feed tube communicating with the other lower end of said cylinder, the wall of the inner tube having adjacent the lower end thereof a passage opening into said discharge chamber, the outer tube having a discharge passage adjacent the upper end thereof and communicating with the upper end of said discharge chamber, a `cupshaped piston in the pump cylinder,'tensional means for moving-the piston upwardly in said cylinder, a plunger rod slidably mounted in said cap and independent of and adapted to engage said piston to move the same downwardly in the cylinder against the action Vof said tensional means in the operation of forcing uid fromthe cylinder and in discharging the rsame through said discharge chamber and passage, a check valve seating in the lower end portion of the cylinder unit for closing the communication betweenthe pump cylinder and said feed tube in the downward stroke of the piston and in the operation of transmitting fluid into the discharge chamber and outwardly through said discharge passage, means in the lower portion of the pump cylinder for limiting upward or inward movement of said check valve and for forming a seat for said tensional means, that part of the outer tube having the discharge passage being pressed outwardly. and the outer tube adjacent the upper end thereof having an outwardly extending annular beaded portion.

6. A spray device of the class described cornprising an elongated cylinder unit consisting of inner and outer tubes arranged one directly within the other to seal said tubes at opposite end portions thereof, a restricted discharge chamber extending longitudinally of and between adjacent walls of the tubes intermediate the sealed ends thereof, the inner tube forming a pump cylinder closed at one end by a cap or plug and a reduced feed tube communication with the other lower end o f said cylinder, the wall of the inner tube having adjacent the lower end thereof a passage opening into said discharge chamber, the outer tube having a discharge passage adjacent the upper end thereof and communicating with the upper end of said discharge chamber, a cup-shaped piston in the pump cylinder, tensional means for moving the piston upwardly in said cylinder, a plunger rod slidably mounted in said cap and independent of and adapted to engage said piston to move the same downwardly in the cylinder against the action of said tensional means in the operation of forcing fluid from the cylinder and in discharging the same through said discharge chamber and passage, a check valve seating in the lower end portion of the cylinder unit for closing the communication between the pump cylinder and said feed tube in the downward stroke of the piston and in the operation of transmitting fluid into the discharge chamber and outwardly through said discharge passage, means in the lower portion of the pump cylinder for limiting upward or inward movement of said check valve and for forming a seat for said tensional means, that part of the outer tube having the discharge passage being pressed outwardly, the outer tube adjacent the upper end thereof having an outwardly extending annular beaded portion, and an opening formed in both tubes of said cylinder unit adjacent and inwardly of said annular beaded portion to place the upper end portion of the pump cylinder in communication with a container in connection with which the device is mounted.

7. In a spray device of the class described, an elongated tubular casing consisting of two elongated tubes arranged one within the other with the ends of said tubes fitting one directly within and secured and sealed to the other, the outer tube being pressed outwardly intermediate its ends to form a restricted discharge chamber, the outwardly pressed portion of the outer tube adjacent the upper end of said casing having a discharge passage communicating with the upper end of said discharge chamber, the inner tube of the casing having adjacent the lower end thereof a passage placing the lower end of the discharge chamber in communication with the bore of the inner tube, the bore of the inner .tube forming a pump cylinder, a plug closing Ithe upper end of said cylinder, a feed tulbe coupled with thelower endfof the casing and opening into said pump cylinder, and means involving 'a piston and a check valve controlling the communication between the feed tube and said pump cylinder for controlling the admission' of'a iiuidv into the pump cylinder and the discharge vthereof through said discharge chamber and passage. Y

8.v In a spray device of the class described, an elongated tubular casing consisting of two elongated tubes arranged. one within the other with the ends of said tubes fitting one directly tube forming a pump cylinder, ya plug closing the upperv end of said cylinder, a feed tube coupled with the lower end of the casing and opening into said pump cylinder,-and means involving a piston and a check valve controlling the communication between the feed tube and Asaid pump cylinder for controlling the admission of a fluid into the pump cylinder and the discharge thereof through said discharge chamber and passage, and the outer tube of the cas# ing having an outwardly pressed annular bead adjacent the upper end thereof.

9. In a spray deviceof the class described, an

elongated tubular casing consisting of two elonl end of said discharge chamber, the inner tube of the casing having adjacent the lower end thereof a passage placing the lower end of the discharge chamber in communication with the bore of the inner tube, the bore of the inner tube forming a pump cylinder, a plug closing the upper end of said cylinder, a feed tube coupled with the lower vend of the casing and opening into saidpump cylinder, means involving a piston and a check valve controlling the communication between the feed tube and said pump cylinder for controlling the admission of a fluid into the'pump'cylinder and the discharge outwardly 'pressed annular bead adjacent the upper end thereof, and the tubes of said casing.

having avpassage adjacent and below said annular bead and opening into the pump cylinder of said casing. l

.10.'In a spray device o f the class described, an elongated tubular casing consisting of two elongated tubesl arranged one within the other with the ends vof, said tubes fitting one directly Within and secured and sealed to the other, the

' outer tube being pressed outwardly intermediate its endsto form a restricted discharge chamber, the outwardly pressed portion of the outer tube f adjacent the upperend of said casing having a l discharge passage communicating with the up- 'per end .of said dischargechamber, the inner tube of the casing having adjacent the lower end thereof a passage placing the lower end of the' discharge chamber in communication with the bore of thel inner tube, the bore of the inner Ntube forming a pump. cylinder, a plug closing the upper end of said cylinder, a feed tube coupled with the lower end of the casing and opening into said pump cylinder, means involving a piston and a check valve controlling the communication between the feed tube and said pump cylinder for rcontrolling the admission of a fluid into the pump cylinder and the discharge `thereof through said discharge chamber and passage, the-outer tube of thev casing having an outwardly pressed annular beadV adjacent the upper end thereof, the tubes of said casing having a passage adjacent and below said annular bead and opening into the pump cylinder of said casing, a plunger rod forfactuating the piston in one direction, a coil spring for moving the piston and rod in the opposite direction, and means in the lower portion of the pump cylinder forming a seat for said spring and a stop limiting kinward movement of said check valve.

a Y STANLEY MAJEWSKI.' 

